Boots from external usb drive only
OK so I was just handed a 07 MBP that has a circle with a line through it at startup.
I've tested the hdd and it fires up just fine in another unit.
Leave the drive out of the 07 and I get the folder with question mark.
Tested ram and checks out fine.
Leave ram out of 07 and I get the flashes.
Chime did work but now there isn't one.
Use an external drive via usb and it starts up though still no chime.
Try with a firewire drive and back to circle with line.
Power up under option and all internal and external devices are seen, choose anything other than usb and right back to circle with line.
Screen/video works fine BTW
Is this a good question?